Gabbert walked off the field under his own power and later was seen wandering the sideline. Jaguars coach Mike Mularkey said after the game that Gabbert has a strain in the back of his leg and the injury had been bothering the quarterback. Mularkey chose to pull Gabbert with the game out of reach.

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Backup Chad Henne took over, but he couldn't turn around a contest that ultimately produced more questions than answers for Jacksonville's offense.

Gabbert's day was messy from the outset. His 7-of-19 outing for 53 yards and a touchdown marked his lowest yardage as a pro. Take away his 32-yard completion to Laurent Robinson, and Gabbert's five remaining connections averaged less than five yards a pop.

Jacksonville sputtered through five three-and-outs at one stage. The offensive line was overwhelmed by Houston's defense, leaving Gabbert to face a collapsing pocket all afternoon.

It read like a page ripped from last year's shaky narrative for the Jaguars. That's not a book anyone in Jacksonville was hoping to re-read in 2012.